[Determination of B lymphocytes: immunofluorescence and peroxidase dyes (preliminary note)].

A determination of the lymphocyte levels in blood and cutaneous infiltrates of 60 patients complaining of different dermatoses were carried out by the authors. The method used in the experience was that of Preud'homme and Flandrin (1974). In most of the investigated cases the results could be considered as normal (8-22%). In one case of actinic reticuloid and 2 cases of plane xanthoma with photosensitivity the levels were considerably raised. The authors belleve that the B-lymphocytes determination could be worth investigation in the photosensitive dermatoses.